/* Article and blog index (ar-). Reading column, post header, table of contents,
   post cards, topic filter, legal documents. Values from the design system. */

/* post header */
.ar-narrow{max-width:1180px}
.ar-head .crumb span{color:#C4C7C4}
.ar-h1{font-size:clamp(38px,4.6vw,66px);letter-spacing:-.035em;line-height:1.06;margin-top:22px;max-width:1040px;text-wrap:balance}
.ar-stand{margin-top:24px;max-width:760px;font-size:20px;text-wrap:pretty}
.ar-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;margin-top:30px;font-size:14.5px;color:var(--muted)}
.ar-meta b{color:var(--ink);font-weight:500}
.ar-dot{width:3px;height:3px;border-radius:50%;background:#C4C7C4}
.ar-av{display:inline-grid;place-items:center;flex:none;width:32px;height:32px;border-radius:50%;background:#EAF1EC;color:var(--brand-text);font-size:12px;font-weight:600;letter-spacing:.02em}
.ar-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.ar-tag{display:inline-flex;align-items:center;min-height:30px;padding:0 12px;border-radius:999px;border:1px solid #E4E4E0;background:var(--surface);color:var(--ink-2);font-size:13px;font-weight:500;text-decoration:none;transition:border-color .2s,color .2s}
a.ar-tag:hover{border-color:var(--brand);color:var(--brand-text)}
.ar-cover{margin:48px 0 0;border-radius:24px;overflow:hidden;background:var(--stage);aspect-ratio:2/1}
.ar-cover img{display:block;width:100%;height:100%;object-fit:cover}

/* layout: reading column + aside */
.ar-layout{display:grid;grid-template-columns:minmax(0,740px) minmax(0,260px);justify-content:space-between;gap:64px;padding-top:72px;align-items:start}
.ar-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:28px;font-size:14px}
.ar-asideh{font-size:12.5px;font-weight:500;letter-spacing:.04em;text-transform:uppercase;color:#646A66;margin-bottom:12px}
.ar-toc ol,.ar-tocm ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.ar-toc li a{display:block;padding:7px 0 7px 14px;border-left:2px solid var(--line);color:var(--muted);text-decoration:none;line-height:1.4;transition:color .2s,border-color .2s}
.ar-toc li a:hover{color:var(--ink)}
.ar-toc li a.on{color:var(--ink);border-left-color:var(--brand)}
.ar-aside-b{padding-top:24px;border-top:1px solid var(--line)}
.ar-toc + .ar-aside-b{margin-top:4px}
.ar-author{display:flex;gap:12px;align-items:center}
.ar-author b{display:block;color:var(--ink);font-weight:500}
.ar-author span span{color:#646A66;font-size:13px}
.ar-share{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.ar-share .ar-asideh{margin:0 6px 0 0}
.ar-share a{display:inline-flex;align-items:center;gap:7px;min-height:34px;padding:0 12px;border-radius:10px;border:1px solid #E4E4E0;color:var(--ink-2);font-size:13px;font-weight:500;text-decoration:none;transition:border-color .2s,color .2s}
.ar-share a:hover{border-color:var(--brand);color:var(--brand-text)}
.ar-share-v{flex-direction:column;align-items:stretch}
.ar-share-v .ar-asideh{margin-bottom:4px}
.ar-tocm{display:none}

/* reading column */
.ar-body{max-width:68ch;font-size:18px;line-height:1.72;color:var(--ink-2);min-width:0}
.ar-body > *:first-child{margin-top:0}
.ar-body p{margin:0 0 22px}
.ar-body .ar-lede{font-size:22px;line-height:1.55;color:var(--ink);letter-spacing:-.01em;margin-bottom:32px}
.ar-body h2{font-size:clamp(26px,2.4vw,32px);font-weight:500;letter-spacing:-.025em;line-height:1.18;color:var(--ink);margin:64px 0 18px;scroll-margin-top:96px;text-wrap:balance}
.ar-body h3{font-size:21px;font-weight:500;letter-spacing:-.015em;line-height:1.3;color:var(--ink);margin:40px 0 12px;scroll-margin-top:96px}
.ar-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:28px 0 8px}
.ar-body strong,.ar-body b{font-weight:600;color:var(--ink)}
.ar-body a{color:var(--brand-text);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:rgba(20,100,48,.35);transition:text-decoration-color .2s}
.ar-body a:hover{text-decoration-color:var(--brand-text)}
.ar-body ul,.ar-body ol{margin:0 0 26px;padding-left:0;list-style:none}
.ar-body li{position:relative;padding-left:26px;margin:0 0 10px}
.ar-body ul > li::before{content:"";position:absolute;left:6px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.ar-body ol{counter-reset:ar}
.ar-body ol > li{counter-increment:ar}
.ar-body ol > li::before{content:counter(ar);position:absolute;left:0;top:.2em;font-size:12px;font-weight:600;color:var(--brand-text);width:18px;text-align:center}
.ar-body li > ul,.ar-body li > ol{margin:10px 0 0}
.ar-body hr{border:0;border-top:1px solid var(--line);margin:56px 0}
.ar-body blockquote,.ar-body .ar-pull{margin:44px 0;padding:4px 0 4px 26px;border-left:2px solid var(--brand);font-size:clamp(22px,2.1vw,27px);line-height:1.4;letter-spacing:-.02em;color:var(--ink)}
.ar-body .ar-pull p{margin:0}
.ar-body .ar-src{margin-top:14px;font-size:14px;letter-spacing:0;color:#646A66}
.ar-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.86em;background:var(--stage);border:1px solid var(--line);border-radius:6px;padding:.1em .38em;color:var(--ink);overflow-wrap:anywhere}
.ar-body pre{margin:32px 0;padding:22px 24px;background:var(--ink);color:#E8EAE8;border-radius:18px;overflow-x:auto;font-size:14px;line-height:1.65}
.ar-body pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit;overflow-wrap:normal}
.ar-body table{width:100%;border-collapse:collapse;margin:32px 0;font-size:15.5px;display:block;overflow-x:auto}
.ar-body th,.ar-body td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.ar-body th{font-weight:500;color:var(--ink);background:var(--surface-soft)}
.ar-body figure{margin:40px 0}
.ar-body img{display:block;max-width:100%;height:auto;border-radius:18px}
.ar-body figcaption{margin-top:12px;font-size:14px;color:#646A66}
.ar-callout{margin:32px 0;padding:28px 30px;border-radius:20px;background:var(--surface-soft);border:1px solid var(--line-card)}
.ar-callout > *:last-child{margin-bottom:0}
.ar-body .ar-callout h3{margin-top:10px;font-size:19px}
.ar-body .ar-callout ul{margin-bottom:0}
.ar-body .ar-callout li{font-size:16.5px}
.ar-ck{font-size:13px;font-weight:500;color:var(--brand-text);letter-spacing:.01em}
.ar-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:32px 0}
.ar-compare .ar-callout{margin:0}
.ar-chip{display:inline-flex;align-items:center;min-height:28px;padding:0 11px;border-radius:999px;background:#EAF1EC;color:var(--brand-text);font-size:14px;font-weight:500}
.ar-end{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center;margin-top:56px;padding-top:28px;border-top:1px solid var(--line)}
.ar-end .ar-tags{margin:0}
.ar-end .ar-share{display:none}

/* post cards */
.ar-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 24px}
.ar-card{display:flex;flex-direction:column;gap:12px;color:var(--ink);text-decoration:none;min-width:0}
.ar-card[hidden]{display:none}
.ar-cimg{display:block;aspect-ratio:2/1;border-radius:18px;overflow:hidden;background:var(--stage);margin-bottom:6px}
.ar-cimg img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.ar-card:hover .ar-cimg img{transform:scale(1.03)}
.ar-cmeta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;font-size:13px;color:#646A66}
.ar-kick{color:var(--brand-text);font-weight:500}
.ar-ct{margin:0;font-size:21px;font-weight:500;letter-spacing:-.02em;line-height:1.25;text-wrap:balance;transition:color .2s}
.ar-card:hover .ar-ct{color:var(--brand-text)}
.ar-cx{font-size:15px;line-height:1.55;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ar-cd{font-size:13px;color:#6B716D;margin-top:auto}
.ar-more{color:var(--ink);font-weight:500;text-decoration:none}
.ar-more:hover{color:var(--brand-text)}

/* blog index */
.ar-feat{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);align-items:center;gap:12px;padding:12px;border-radius:24px;background:var(--surface-soft);border:1px solid var(--line-card);overflow:hidden;color:var(--ink);text-decoration:none;transition:border-color .2s}
.ar-feat[hidden],#arFeat[hidden]{display:none}
.ar-feat:hover{border-color:#C9CCC9}
.ar-fimg{display:block;border-radius:16px;overflow:hidden;background:var(--stage);aspect-ratio:2/1}
.ar-fimg img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.ar-feat:hover .ar-fimg img{transform:scale(1.02)}
.ar-fbody{display:flex;flex-direction:column;gap:14px;padding:clamp(20px,3vw,44px)}
.ar-flabel{align-self:flex-start;font-size:12.5px;font-weight:500;color:var(--on-brand);background:var(--brand);border-radius:999px;padding:4px 10px}
.ar-ft{margin:4px 0 0;font-size:clamp(24px,2.3vw,32px);font-weight:500;letter-spacing:-.03em;line-height:1.14;text-wrap:balance}
.ar-fx{font-size:16.5px;line-height:1.6;color:var(--body)}
.ar-fmeta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:10px;font-size:14px;color:var(--muted)}
.ar-fmeta b{color:var(--ink);font-weight:500}
.ar-fgo{font-size:14.5px;font-weight:500;color:var(--brand-text)}
.ar-tools{display:flex;flex-wrap:wrap;gap:18px 24px;align-items:center;margin:44px 0 0;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ar-search{position:relative;display:flex;align-items:center;flex:0 1 420px;min-width:0;color:#646A66}
.ar-search svg{position:absolute;left:14px;pointer-events:none}
.ar-search input{width:100%;min-height:44px;padding:0 14px 0 42px;border-radius:12px;border:1px solid var(--line-strong);background:var(--surface);font:inherit;font-size:15px;color:var(--ink);outline:none;transition:border-color .2s,box-shadow .2s}
.ar-search input::placeholder{color:#6B716D}
.ar-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,100,48,.12)}
.ar-filter{display:flex;flex-wrap:wrap;gap:8px;flex:1 1 100%}
.ar-fb{min-height:36px;padding:0 14px;border-radius:999px;border:1px solid #E4E4E0;background:var(--surface);color:var(--ink-2);font:inherit;font-size:13.5px;font-weight:500;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.ar-fb:hover{border-color:var(--ink)}
.ar-fb[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--on-brand)}
.ar-fb:focus-visible,.ar-search input:focus-visible,.ar-card:focus-visible,.ar-feat:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.ar-count{min-height:22px;margin:18px 0 22px;font-size:14px;color:var(--muted)}
.ar-none{padding:48px 28px;border-radius:20px;background:var(--surface-soft);text-align:center;color:var(--muted);font-size:15.5px}
.ar-none[hidden]{display:none}
.ar-none b{color:var(--ink);font-weight:500}
.ar-none button{font:inherit;color:var(--brand-text);background:none;border:0;padding:0;text-decoration:underline;cursor:pointer}
/* .ar-sr mirrors base .sr-only until site/v2-launch is merged; drop it then */
.ar-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* legal and utility documents */
.ar-doc .ar-body{font-size:16.5px;line-height:1.7}
.ar-doc .ar-body h2{font-size:22px;margin:44px 0 12px}
.ar-doc .ar-body h4{margin-top:24px}
.ar-doc .ar-body ul > li::before{top:.68em}
.ar-updated{margin-top:18px;font-size:15px;color:#646A66}
.ar-docnav a{display:block;padding:7px 0 7px 14px;border-left:2px solid var(--line);color:var(--muted);text-decoration:none}
.ar-docnav a:hover{color:var(--ink)}
.ar-docnav a[aria-current]{color:var(--ink);border-left-color:var(--brand)}
.ar-form{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin:8px 0 6px}
.ar-field{display:flex;flex-direction:column;gap:8px;flex:1 1 280px;min-width:0}
.ar-field span{font-size:13.5px;font-weight:500;color:var(--ink)}
.ar-field input{min-height:48px;padding:0 16px;border-radius:12px;border:1px solid var(--line-strong);background:var(--surface);font:inherit;font-size:15.5px;color:var(--ink);outline:none;transition:border-color .2s,box-shadow .2s}
.ar-field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,100,48,.12)}
.ar-form .btn{border:0;cursor:pointer;font-family:inherit}
.ar-form .btn[disabled]{opacity:.6;cursor:default}
.ar-note{margin:0 0 28px;padding:16px 20px;border-radius:14px;font-size:15px;line-height:1.55}
.ar-note[hidden]{display:none}
.ar-note.ok{background:#EAF1EC;color:#0F4D25;border:1px solid #D3E4D8}
.ar-note.warn{background:#FCF3E3;color:#6B4800;border:1px solid #F0D9A8}
.ar-status{min-height:22px;margin:12px 0 0;font-size:14.5px}
.ar-status.ok{color:var(--brand-text)}
.ar-status.err{color:#B3261E}
.ar-404{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:56px}
.ar-404 a{display:flex;flex-direction:column;gap:6px;padding:24px 26px;border-radius:20px;border:1px solid var(--line-card);background:var(--surface);color:var(--ink);text-decoration:none;transition:border-color .2s,transform .2s}
.ar-404 a:hover{border-color:var(--brand);transform:translateY(-2px)}
.ar-404 b{font-weight:500;font-size:17px}
.ar-404 span{font-size:14.5px;color:var(--muted);line-height:1.5}

@media (max-width:1100px){
  .ar-layout{grid-template-columns:minmax(0,1fr) minmax(0,220px);gap:48px}
  .ar-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .ar-layout{grid-template-columns:minmax(0,1fr);padding-top:44px}
  .ar-aside{display:none}
  .ar-doc .ar-aside{display:flex;position:static;order:-1}
  .ar-doc .ar-aside .ar-toc{display:none}
  .ar-body{max-width:none}
  .ar-tocm{display:block;margin:0 0 36px;border:1px solid var(--line-card);border-radius:16px;background:var(--surface-soft);font-size:15px}
  .ar-tocm summary{cursor:pointer;padding:14px 18px;font-weight:500;color:var(--ink);list-style-position:inside}
  .ar-tocm ol{padding:0 18px 14px}
  .ar-body .ar-tocm li{padding:0;margin:0}
  .ar-body .ar-tocm li::before{content:none}
  .ar-tocm a{display:block;padding:7px 0;border-top:1px solid var(--line);color:var(--body);text-decoration:none}
  .ar-end .ar-share{display:flex}
  .ar-feat{grid-template-columns:minmax(0,1fr)}
  .ar-fbody{padding:12px 12px 16px}
  .ar-tools{align-items:stretch}
  .ar-search{flex:1 1 100%}
  .ar-404{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .ar-h1{font-size:36px}
  .ar-stand{font-size:17.5px}
  .ar-cover{margin-top:32px;border-radius:18px}
  .ar-body{font-size:17px}
  .ar-body .ar-lede{font-size:19.5px}
  .ar-body h2{margin-top:48px}
  .ar-callout{padding:22px 20px}
  .ar-compare{grid-template-columns:minmax(0,1fr)}
  .ar-cards{grid-template-columns:minmax(0,1fr);gap:36px}
  .ar-404{grid-template-columns:minmax(0,1fr)}
  .ar-share a span{display:none}
  .ar-share a{padding:0 10px}
}
.ar-aside > .ar-aside-b:first-child{border-top:0;padding-top:0}
@media (max-width:640px){.ar-dot{display:none}.ar-meta{gap:8px 14px}}